/*** 获取店铺签约合同信息* @access http://api.xxx.com/getUserNameByTagIdFromServer* @param tagId 标签id {number}* @returns name 用户名称 {string}*/asyncfunctionqueryUserNameByTagId(tagId:string){constuserName=awaitgetUserNameByTagIdFromServer(tagId);returnuserName;} interface interfaceIUser{/...
XML<scriptasyncsrc="https://www.googletagmanager.com/gtag/js?id=TAG_ID"></script><script>window.dataLayer=window.dataLayer|| [];functiongtag(){dataLayer.push(arguments)};gtag('js',newDate());gtag('config','TAG_ID');</script> dataLayer数组在 HTML 中声明。 TypeScript 编译器不知道...
interfaceCustomer{name:stringphone:string}declarefunctiongetCustomerData(id:string):Promise<Customer>;declarefunctionpayCustomer(customer:Customer):void;asyncfunctionf(){constcustomer=getCustomerData('c1')payCustomer(customer)} 以前的 TypeScript 完全不了解 Promise,并显示一条与其无关的错误消息,如下所示: ...
declarelet test:(inStr:string) =>string; 在TypeScript 文件里使用三斜线指令引用这个文件: 1 2 3 4 // File: test-01.ts /// <reference path="./sample-00.d.ts"> console.log(name);// 编译通过。 console.log(test("hello"));// 编译通过。 使用第三方库 第三方库 async 也是纯 JavaScript...
而如果只是要一个异步方法那么请使用 async await / promise 就够了. 5. 扩展原型 extend prototype refer : http://stackoverflow.com/questions/41192986/extending-the-string-class-doesnt-work-in-some-context declare global { interface String {
return function ( target: any, propertyKey: string, descriptor: PropertyDescriptor, ) { descriptor.value = function (): any { console.log(path); }; }; }; await app.listen(3000); class build { @methodAsyncHandler('path') static async clickHander() { ...
extendsPromise<inferR>?R:T[K]}>declarefunctionpromiseProps<T>(t:T):Depromisify<T>asyncfunction...
interfaceLion{roar():void}interfaceSeal{singKissFromARose():void}asyncfunctionvisitZoo(lionExhibit:Promise,sealExhibit:Promiseundefined>){let[lion,seal]=awaitPromise.all([lionExhibit,sealExhibit]);lion.roar();// uh oh// ~~~// Object is possibly 'undefined'.}复制代码 这种...
declarefunctionMaybePromise<T>(value:T):T|Promise<T>|PromiseLike<T>;asyncfunctiondoSomething():Promise<[number,number]>{constresult=awaitPromise.all([MaybePromise(100),MaybePromise(200)]);// Error!/// [number | Promise<100>, number | Promise<200>]/// is not assignable to type/// [nu...
promise-function-async 返回Promise 的函数必须被标记为 async,此规则能够确保函数的调用方只需要处理 try/catch 或者 rejected promise 的情况。 为什么:还用解释吗? 严格约束 no-unnecessary-boolean-literal-compare 不允许对布尔类型变量与 true / false 的 === 比较,如: ...